{"nhtsa_id":608458,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-12-02","date":"1999-08-01","document_id":"996747","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"SOME VEHICLES EQUIPPED WITH EITHER THE TRAILER TOWING PACKAGE OR CHASSIS CAB MAY EXHIBIT VARIOUS TRAILER RELATED ELECTRICAL CONDITIONS. INSTRUCTIONS ON INSTALLING THE TRAILER TOWING RELAYS AND FUSES ARE PROVIDED IN THE TRAILER TOWING KIT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/608458","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F SUPER DUTY","year_from":1999,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"FORD","model":"F-250","year_from":1999,"year_to":2000,"match":"exact","vehicle_ids":["1999_ford_f-250","2000_ford_f-250"]},{"make":"FORD","model":"F-250 SD","year_from":1999,"year_to":2000,"match":"base","vehicle_ids":["1999_ford_f-250","2000_ford_f-250"]},{"make":"FORD","model":"F-350","year_from":1999,"year_to":2000,"match":"exact","vehicle_ids":["1999_ford_f-350","2000_ford_f-350"]},{"make":"FORD","model":"F-350 SD","year_from":1999,"year_to":2000,"match":"base","vehicle_ids":["1999_ford_f-350","2000_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":1999,"year_to":2000,"match":"base","vehicle_ids":["1999_ford_f-450","2000_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":1999,"year_to":2000,"match":"base","vehicle_ids":["1999_ford_f-550","2000_ford_f-550"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}